EP 3785013 B1 20230607 - A METHOD AND APPARATUS FOR DETERMINING HAEMOGLOBIN CONCENTRATION
Title (en)
A METHOD AND APPARATUS FOR DETERMINING HAEMOGLOBIN CONCENTRATION
Title (de)
VERFAHREN UND VORRICHTUNG ZUR BESTIMMUNG DER HÄMOGLOBINKONZENTRATION
Title (fr)
PROCÉDÉ ET APPAREIL DE DÉTERMINATION DE LA CONCENTRATION D'HÉMOGLOBINE
Publication
Application
Priority
- GB 201806693 A 20180424
- GB 2019051051 W 20190411
Abstract (en)
[origin: GB2573126A] An apparatus for directly determining the mean corpuscular haemoglobin concentration (MCHC) comprises: a sample holder 18 arranged in a centrifuge with first 19 and second 20 light sources positioned on one side of the sample holder, configured to emit light in respective different frequencies (preferably corresponding to the absorption maxima for oxygenated and reduced haemoglobin); and at least one light sensor 15 positioned opposite, so that light may pass through the sample chamber. Preferably, the haematocrit can be measured by detecting the phase boundaries of centrifuged blood between RBCs 16, plasma 17 following rotation about axis 13. Subsequently, the blood Hb concentration may be calculated from the measured of MCHC and haematocrit values. A method for measuring the MCHC using the apparatus, but with only one light source (preferably isosbestic for Hb), is also disclosed.
IPC 8 full level
G01N 15/04 (2006.01); G01N 15/00 (2006.01); G01N 15/05 (2006.01); G01N 21/07 (2006.01); G01N 21/31 (2006.01); G01N 33/49 (2006.01)
CPC (source: EP GB KR US)
B04B 5/0407 (2013.01 - GB); G01J 3/427 (2013.01 - GB); G01N 15/042 (2013.01 - EP GB KR US); G01N 15/05 (2013.01 - EP GB KR US); G01N 21/07 (2013.01 - EP KR US); G01N 21/3151 (2013.01 - EP KR US); G01N 33/49 (2013.01 - EP KR); G01N 33/491 (2013.01 - GB US); G01N 33/4925 (2013.01 - GB US); G01N 33/721 (2013.01 - GB KR); G01N 33/726 (2013.01 - GB US); G01N 33/721 (2013.01 - US); G01N 2015/012 (2024.01 - EP KR US); G01N 2015/045 (2013.01 - GB); G01N 2015/047 (2013.01 - EP KR US); G01N 2015/055 (2013.01 - EP GB KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
GB 201806693 D0 20180606; GB 2573126 A 20191030; GB 2573126 B 20221109; AU 2019259195 A1 20201119; CA 3098273 A1 20191031; EP 3785013 A1 20210303; EP 3785013 B1 20230607; ES 2951862 T3 20231025; JP 2021522502 A 20210830; KR 20210002637 A 20210108; US 11372006 B2 20220628; US 2021072262 A1 20210311; WO 2019207284 A1 20191031
DOCDB simple family (application)
GB 201806693 A 20180424; AU 2019259195 A 20190411; CA 3098273 A 20190411; EP 19718829 A 20190411; ES 19718829 T 20190411; GB 2019051051 W 20190411; JP 2020560370 A 20190411; KR 20207033871 A 20190411; US 201917049885 A 20190411